Pregnant after a break up. Pls help me.

So basically 3 days after my parner and I have decided to end a nearly five year relationship, I've discovered I'm pregnant. I'm 24 years old and even though i work full time, I know i can't afford to have a baby and mentally I know I'm not in the right mind frame to look after someone other then myself. My partner is 31, jobless and planning on moving to a city a 2 hour plane ride away from where I live. For the most part of our relationship he's been really good to me but a horrible part of me doesn't want to tell him I'm pregnant or that I 100% plan to get an abortion because I don't want to drag out him moving away/our break up or him trying to convince me to keep the baby. I'm not ready to have a child , nor am I financially or mentally ready to have one. We've been careful with birth control all these years but I guess not careful enough. I can 100% say I don't want to have this baby and I'm absolutely certain I don't want want my relationship to continue with my partner but am I wrong for not telling him? I feel so guilty but I feel as if it's best for him not to know. Please help me.

Side note - I have been pregnant once before to an ex and we decided to keep the baby. It was a HORRIBLE pregnancy, bleeding, discharge and cramping pain everyday and eventually even though I had done everything I could to keep myself and the baby healthy I somehow ended up with a infection in my uterus which quickly grew into blood poisoning. If hadn't had gone to the hospital when I had I could have died. I had to terminate my baby before it had chance to survive so that I could live. I've now been marked as high risk so I have no intention of keeping the baby and giving it up for adoption. Im not willing to put my body through that again unless the baby growing inside me is for me. I'm sorry if this upsets anyone but I don't want it. End of story. I respect any and everyone's opinions on the topic but at the end of the day an abortion is what I'm set on doing.